diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/fixture.ts b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/fixture.ts
new file mode 100644
index 000000000000..7fc56660a355
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/fixture.ts
@@ -0,0 +1 @@
+a?.b()`...`
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/1-TSESTree-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/1-TSESTree-Error.shot
new file mode 100644
index 000000000000..e096b5f6d715
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/1-TSESTree-Error.shot
@@ -0,0 +1,7 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-nested-function-tag > TSESTree - Error`]
+TSError
+> 1 | a?.b()`...`
+    | ^^^^^^^^^^^ Tagged template expressions are not permitted in an optional chain.
+  2 |
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/2-Babel-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/2-Babel-Error.shot
new file mode 100644
index 000000000000..69c9ea2f84ea
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/2-Babel-Error.shot
@@ -0,0 +1,8 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-nested-function-tag > Babel - Error`]
+BabelError
+> 1 | a?.b()`...`
+    | ^ Tagged Template Literals are not allowed in optionalChain. (1:0)
+  2 |
+  
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/3-Alignment-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/3-Alignment-Error.shot
new file mode 100644
index 000000000000..11aea0c55d48
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-function-tag/snapshots/3-Alignment-Error.shot
@@ -0,0 +1,4 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-nested-function-tag > Error Alignment`]
+Both errored
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/fixture.ts b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/fixture.ts
new file mode 100644
index 000000000000..d6e041652e3d
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/fixture.ts
@@ -0,0 +1 @@
+a?.b.c`...`
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/1-TSESTree-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/1-TSESTree-Error.shot
new file mode 100644
index 000000000000..3be80a77ffb4
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/1-TSESTree-Error.shot
@@ -0,0 +1,7 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-nested-tag > TSESTree - Error`]
+TSError
+> 1 | a?.b.c`...`
+    | ^^^^^^^^^^^ Tagged template expressions are not permitted in an optional chain.
+  2 |
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/2-Babel-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/2-Babel-Error.shot
new file mode 100644
index 000000000000..e27266628424
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/2-Babel-Error.shot
@@ -0,0 +1,8 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-nested-tag > Babel - Error`]
+BabelError
+> 1 | a?.b.c`...`
+    | ^ Tagged Template Literals are not allowed in optionalChain. (1:0)
+  2 |
+  
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/3-Alignment-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/3-Alignment-Error.shot
new file mode 100644
index 000000000000..87a5ea5117c6
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-nested-tag/snapshots/3-Alignment-Error.shot
@@ -0,0 +1,4 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-nested-tag > Error Alignment`]
+Both errored
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/fixture.ts b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/fixture.ts
new file mode 100644
index 000000000000..fb8c8604a1d5
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/fixture.ts
@@ -0,0 +1 @@
+a?.b`...`
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/1-TSESTree-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/1-TSESTree-Error.shot
new file mode 100644
index 000000000000..b7909f67ed9e
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/1-TSESTree-Error.shot
@@ -0,0 +1,7 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-tag > TSESTree - Error`]
+TSError
+> 1 | a?.b`...`
+    | ^^^^^^^^^ Tagged template expressions are not permitted in an optional chain.
+  2 |
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/2-Babel-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/2-Babel-Error.shot
new file mode 100644
index 000000000000..23079d1b071e
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/2-Babel-Error.shot
@@ -0,0 +1,8 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-tag > Babel - Error`]
+BabelError
+> 1 | a?.b`...`
+    | ^ Tagged Template Literals are not allowed in optionalChain. (1:0)
+  2 |
+  
diff --git a/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/3-Alignment-Error.shot b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/3-Alignment-Error.shot
new file mode 100644
index 000000000000..d32839672fdb
--- /dev/null
+++ b/packages/ast-spec/src/expression/TaggedTemplateExpression/fixtures/_error_/optional-tag/snapshots/3-Alignment-Error.shot
@@ -0,0 +1,4 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`AST Fixtures > expression > TaggedTemplateExpression > _error_ > optional-tag > Error Alignment`]
+Both errored
diff --git a/packages/typescript-estree/src/convert.ts b/packages/typescript-estree/src/convert.ts
index f2a504aa4a1d..7ebc034afdec 100644
--- a/packages/typescript-estree/src/convert.ts
+++ b/packages/typescript-estree/src/convert.ts
@@ -1917,7 +1917,13 @@ export class Converter {
         return result;
       }
 
-      case SyntaxKind.TaggedTemplateExpression:
+      case SyntaxKind.TaggedTemplateExpression: {
+        if (node.tag.flags & ts.NodeFlags.OptionalChain) {
+          this.#throwError(
+            node,
+            'Tagged template expressions are not permitted in an optional chain.',
+          );
+        }
         return this.createNode<TSESTree.TaggedTemplateExpression>(node, {
           type: AST_NODE_TYPES.TaggedTemplateExpression,
           quasi: this.convertChild(node.template),
@@ -1929,6 +1935,7 @@ export class Converter {
               node,
             ),
         });
+      }
 
       case SyntaxKind.TemplateHead:
       case SyntaxKind.TemplateMiddle:

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